ARM: S3C64XX: SPI: Make platform device compilation selectable

The SPI controller platform devices should be compiled in
independent of the driver support, otherwise we might end
up with dev-spi built as kernel module.
Change this to make every machine select if it has some SPI
device and wants to build device definitions.
Signed-off-by: NJassi Brar <jassi.brar@samsung.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/plat-s3c64xx/Makefile

@@ -40,6 +40,9 @@ obj-$(CONFIG_S3C64XX_DMA)	+= dma.o
 
 obj-$(CONFIG_S3C_ADC)		+= dev-adc.o
 
+# SPI support
+obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o
+
 # Device setup
 
 obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o
@@ -47,4 +50,3 @@ obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o
 obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o
 obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
 obj-$(CONFIG_SND_S3C24XX_SOC) += dev-audio.o
-obj-$(CONFIG_SPI_S3C64XX) += dev-spi.o

arch/arm/plat-samsung/Kconfig

@@ -132,6 +132,12 @@ config S3C_DEV_NAND
 	help
 	  Compile in platform device definition for NAND controller
 
+config S3C64XX_DEV_SPI
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controllers.
+
 comment "Power management"
 
 config SAMSUNG_PM_DEBUG